Snow-plow.



No. 874,761. PATENTED 1350.24, 1907.

G. GRAHAM & J. CLMARTIN.

suow PLOW.

APPLICATION FILED MAY 27,1907.

2 SHEETS-11133! 1.

WITNESSES No. 874,761. PATENTED DEC. 24, 1907.

e. GRAHAM & J. c. MARTIN.

snow PLOW. APPLIOATION FILED MAY27,1907.

2 SHEETS-SHEET 2.

UNITED STATES GEORGE GRAHAM AND JOHN C. MARTIN OF ROUNTHWAITE, MANITOBA, oANADA.

SNOW-PLOW.

Application filed May 2'7 T 0 all whom it may concern:

Be it known that We, GEORGE GRAHAM and JOHN C. MARTIN, citizens of Canada, residing at Rounthwaite, in the Province of Manitoba, Dominion of Canada, have invented new and useful Improvements in Snow-Flows, of which the following is a specification.

Our invention pertains to snow plows; and it contemplates the provision of a snow plow designed to be carried on the forward portion of a locomotive or on a car or truck to be pushed in front of a locomotive, and em bodying disks calculated when they are forced into a mass of snow, to be rotated by the friction between their faces and the snow, and to cut and lift the snow and throw the same to points at opposite sides of the track.

Other objects and advantages of the invention will be fully understood from the following detailed description when the same is considered in connection with the accompanying drawings, forming part of this specification, in which:

Figure 1 is a front elevation illustrating our improvements as properly positioned relative to a locomotive and a railway track.

Fig. 2 is a perspective view of the frame for carrying the disks, the vertical central deflectors, and the guide wings of our improvements. Fig. 3 is a detail horizontal section of the plow. Fig. 4 is a detail sectional perspective showing the arrangement of one of the disks relative to the lower vertical central deflector and one of the guide wings. Fig. 5 is a detailvertical central section illustrative of the arrangement of the lower and upper deflectors on the frame. Fig. 6 is a detail section showing the relative arrangement of one disk and one anti-friction wheel.

Similar letters of reference designate corresponding parts in all of the views of the drawings.

Our improvements comprise a frame A, of wood or other material suitable to the purpose of our invention, and the said frame is constructed with a view of being fixedly connected with facility to the forward portion of a locomotive. We desire it understood, however, that in lieu of employing the frame A we may mount our improvements on a car or truck designed to be pushed in front of a locomotive or the like.

The frame A is preferably of the shape best shown in Fig. 2, and between bearings Specification of Letters Patent.

Patented Dec. 24, 1907.

.1907. $erial No. 375,898.

on its side bars a are mounted the shafts I), anti-friction wheels B which are disposed at right angles to the disks, presently described, and are arranged to engage the rear sides of the disks at points off the centers and adjacent to the lowermost points thereof with a view of lessening friction incident to rotation of the disks, and at the same time taking a portion of the strain and thrust from the journal bearings for the shafts of the disks.

C C are the disks which are arranged upright and at acute angles to each other and are constructed in such manner that when locomotive they will be rotated by the friction between their faces and the snow and will cut and raise the snow and tend to throw the same to points at opposite sides of the path of the locomotive. The faces of the disks C are concave as shown, and when deemed expedient may be ribbed, without involving departure from the scope of our invention as claimed. At its rear side each of the disks 0 is preferably provided with and E, Fig. 3, and each disk G is preferably fixed upon a shaft F after the manner shown in said figure-that is to say, the disk is provided at its forward side with a central enlargement g in which is an angular opening h, and the shaft F is rovided with an angular portion i designed to occupy said opening, and is also provided with a threaded forward end to receive a nut is which has for its oflice to hold the disk against movement off the shaft. The disk is held against rearward movement on its complementary shaft through the medium of a collar 1 secured by a set screw on the shaft, and the said shaft is retained in its bearing F through the medium of a collar 1 fixed by a set screw on the shaft.

Fixed in a suitable manner with respect to the frame A and arranged between the upper portions of the disks C and the lower portions of said disks are upper and lower angular deflectors H which have for their oflice to close the spaces between the disks at the top and bottom of the plow and to guide the snow to the faces of the disks so as to increase the efliciency of the plow as a whole.

Extending slightly in rear of the lower portions of the. erimeters of the disks 0 are guides P whic have for their office to guide the snow to points beyond opposite sides of they are forced into the snow by a following two fixedly connected reinforcing plates D the path of the locomotive. The said guides P are fixed with respect to the frame A and the deflectors H, and are calculated to serve the purpose stated without interfering with the rotation of the disks C under the action of the locomotive.

In the practical operation of our novel snow plow, it will be seen that when the locomotive is moved against a mass of snow on its track, the deflectors H will first engage the mass of snow, and will throw the snow against the faces of the disks or in other words will enable the disks C to engage the mass of snow in such manner that the friction between the faces of the disks and the snow will assure rotation of the disks. When thus rotated the disks will cut and raise the snow in the directions indicated by arrows in Fig. 1, and the guides P will assure the snow being discharged to points at opposite sides of the railway track.

It will be gathered from the foregoing that our novel snow plow while simple and inex- V pensive in construction, is highly eflicient in operation, and because of the manner in which the several parts are constructed and braced, is well adapted to withstand the hard usage to which power snow plows are ordinarily subjected.

The construction herein shown and. described is the best means known to us for carrying out the principle of our invention, but we do not desire to be understood as confining ourselves to the specific construction disclosed inasmuch as various changes in the form, construction and relative arrangement of parts may obviously be made in practice without involving departure from the scope of our invention.

Having described our invention, what we claim and desire to secure by Letters-Patent, is:

1. A snow plow comprising carrying means, and disks mounted on said carrying means and arranged when moved against a mass of snow, to be rotated by the friction between their faces and the snow, and to move the snow.

2. A snow plow comprising a frame, and disks loosely mounted on the frame and arranged in front of the frame and at acute angles to each other, with the inner portions of their perimeters in close proximity, and having concave faces, whereby when pressed against a mass of snow they will be rotated by the friction between their faces and the snow and will move the snow.

3. A snow plow comprising a frame, upper and lower vertical central deflectors fixed on the frame, guide wings fixed to the frame and arranged in rear of the lower central vertical deflector, and disks loosely mounted on the frame immediately in front of the deflectors and guide wings and disposed at acute angles to each other, with the inner portions of their perimeters adjacent to each other, and having concave faces, whereby when forced against a mass of snow, they will be rotated by the friction between their faces and the snow and will move the latter.

4. A snow plow comprising a frame of general acute angle form, upright shafts mounted in the said frame and equipped with anti friction wheels extending outward beyond the planes of the frame sides, and disks mounted on the frame and against the antifriction wheels, and arranged when moved against a mass of snow, to be rotatedby the friction between their faces and the snow, and to move the snow.

5. A snow plow comprising a frame of general acute angle form, upright shafts mounted in said frame and equipped with antifriction wheels extending outward beyond the planes of the frame sides, vertical central deflectors of acute angle form fixed on the prow of the frame, guide wings fixed onthe rear portions of the frame sides and arranged in the same horizontal plane as the lower deflector, and disks mounted on the frame in front of the deflectors and guide .wings and against the anti-friction wheels, and arranged when moved against a mass of snow to be rotated by the friction between their faces and the snow, and to move the snow.

6. A snow plow comprising a frame of gen eral acute angle form having bearings on its side bars, upright shafts ournaled in the frame and equipped with anti-friction wheels extending outward beyond the lower portions of the frame sides, verticalcentral deflectors fixed on the prow of the frame, guide wings fixed on the lower rear portions of the frame sides, rotatable disks arranged at acute angles to each other in front of the deflectors and guide wings and having reinforcing plates at their rear sides, and shafts carrying the said disks and ournaled in the bearings on the frame.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

GEORGE GRAHAM. JOHN C. MARTIN.

Witnesses:

JAMES hffARTIN, R. E. WEIR. 

